oj.uz

답안 #1114239

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1114239 2024-11-18T12:10:05 Z Dan4Life Mergers (JOI19_mergers) C++17
48 / 100
 3000 ms 77708 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
using ar2 = array<int,2>;
const int N = (int)5e5+10;
int n, k;
vector<int> adj[N];
int p[N], sz[N];
int a[N], tot[N], deg[N];
set<ar2> S[N];
 
int findSet(int i){return i==p[i]?i:p[i]=findSet(p[i]);}
void unionSet(int i, int j){
	int x = findSet(i), y = findSet(j);
	if(x==y) return;
	if(sz[x]<sz[y])swap(x,y);
	p[y] = x, sz[x]+=sz[y];
}
 
void dfs(int s, int p){
	S[s].insert({a[s],1});
	for(auto u : adj[s]){
		if(u==p) continue;
		dfs(u,s);
		if(sz(S[s]) < sz(S[u])) S[s].swap(S[u]);
		for(auto [v,w] : S[u]){
			auto itr = S[s].lower_bound({v,-1});
			int cnt = 0;
			if(itr!=end(S[s]) and (*itr)[0]==v)
				cnt = ((*itr)[1]), S[s].erase(itr);
			S[s].insert({v,cnt+w});
		}
	}
	int ok = 1;
	for(auto [u,v] : S[s]) ok&=(tot[u]==v);
	if(p and !ok) unionSet(s,p);
}
 
int32_t main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n >> k;
	for(int i = 1; i <= n; i++) p[i]=i,sz[i]=1;
	for(int i = 1; i < n; i++){
		int a, b; cin >> a >> b;
		adj[a].pb(b); adj[b].pb(a);
	}
	for(int i = 1; i <= n; i++)
		cin >> a[i], tot[a[i]]++;
	dfs(1,0);
	for(int i = 1; i <= n; i++)
		for(int j : adj[i])
			if(findSet(i)!=findSet(j)) 
				deg[findSet(i)]++;
	int cnt = 1;
	for(int i = 1; i <= n; i++) cnt+=(deg[i]==1);
	cout << cnt/2 << "\n";
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 45392 KB Output is correct
2 Correct 8 ms 45392 KB Output is correct
3 Correct 8 ms 45404 KB Output is correct
4 Correct 9 ms 45412 KB Output is correct
5 Correct 9 ms 45392 KB Output is correct
6 Correct 8 ms 45392 KB Output is correct
7 Correct 8 ms 45392 KB Output is correct
8 Correct 9 ms 45392 KB Output is correct
9 Correct 8 ms 45392 KB Output is correct
10 Correct 9 ms 45392 KB Output is correct
11 Correct 8 ms 43360 KB Output is correct
12 Correct 9 ms 45392 KB Output is correct
13 Correct 8 ms 39248 KB Output is correct
14 Correct 8 ms 41296 KB Output is correct
15 Correct 8 ms 43344 KB Output is correct
16 Correct 8 ms 39272 KB Output is correct
17 Correct 7 ms 39416 KB Output is correct
18 Correct 8 ms 39248 KB Output is correct
19 Correct 7 ms 41296 KB Output is correct
20 Correct 10 ms 45556 KB Output is correct
21 Correct 8 ms 41388 KB Output is correct
22 Correct 7 ms 41296 KB Output is correct
23 Correct 9 ms 45392 KB Output is correct
24 Correct 8 ms 43364 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 45392 KB Output is correct
2 Correct 8 ms 45392 KB Output is correct
3 Correct 8 ms 45404 KB Output is correct
4 Correct 9 ms 45412 KB Output is correct
5 Correct 9 ms 45392 KB Output is correct
6 Correct 8 ms 45392 KB Output is correct
7 Correct 8 ms 45392 KB Output is correct
8 Correct 9 ms 45392 KB Output is correct
9 Correct 8 ms 45392 KB Output is correct
10 Correct 9 ms 45392 KB Output is correct
11 Correct 8 ms 43360 KB Output is correct
12 Correct 9 ms 45392 KB Output is correct
13 Correct 8 ms 39248 KB Output is correct
14 Correct 8 ms 41296 KB Output is correct
15 Correct 8 ms 43344 KB Output is correct
16 Correct 8 ms 39272 KB Output is correct
17 Correct 7 ms 39416 KB Output is correct
18 Correct 8 ms 39248 KB Output is correct
19 Correct 7 ms 41296 KB Output is correct
20 Correct 10 ms 45556 KB Output is correct
21 Correct 8 ms 41388 KB Output is correct
22 Correct 7 ms 41296 KB Output is correct
23 Correct 9 ms 45392 KB Output is correct
24 Correct 8 ms 43364 KB Output is correct
25 Correct 9 ms 45560 KB Output is correct
26 Correct 11 ms 45904 KB Output is correct
27 Correct 9 ms 39504 KB Output is correct
28 Correct 23 ms 45904 KB Output is correct
29 Correct 13 ms 44112 KB Output is correct
30 Correct 11 ms 44112 KB Output is correct
31 Correct 8 ms 39248 KB Output is correct
32 Correct 26 ms 40016 KB Output is correct
33 Correct 8 ms 39416 KB Output is correct
34 Correct 10 ms 41552 KB Output is correct
35 Correct 12 ms 44112 KB Output is correct
36 Correct 9 ms 39672 KB Output is correct
37 Correct 12 ms 41972 KB Output is correct
38 Correct 8 ms 43344 KB Output is correct
39 Correct 12 ms 42064 KB Output is correct
40 Correct 10 ms 43612 KB Output is correct
41 Correct 12 ms 41552 KB Output is correct
42 Correct 10 ms 39676 KB Output is correct
43 Correct 11 ms 44148 KB Output is correct
44 Correct 8 ms 43344 KB Output is correct
45 Correct 15 ms 41808 KB Output is correct
46 Correct 11 ms 43856 KB Output is correct
47 Correct 8 ms 41296 KB Output is correct
48 Correct 10 ms 43600 KB Output is correct
49 Correct 10 ms 43600 KB Output is correct
50 Correct 20 ms 43860 KB Output is correct
51 Correct 10 ms 41552 KB Output is correct
52 Correct 11 ms 41552 KB Output is correct
53 Correct 10 ms 43756 KB Output is correct
54 Correct 11 ms 39760 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 45392 KB Output is correct
2 Correct 8 ms 45392 KB Output is correct
3 Correct 8 ms 45404 KB Output is correct
4 Correct 9 ms 45412 KB Output is correct
5 Correct 9 ms 45392 KB Output is correct
6 Correct 8 ms 45392 KB Output is correct
7 Correct 8 ms 45392 KB Output is correct
8 Correct 9 ms 45392 KB Output is correct
9 Correct 8 ms 45392 KB Output is correct
10 Correct 9 ms 45392 KB Output is correct
11 Correct 8 ms 43360 KB Output is correct
12 Correct 9 ms 45392 KB Output is correct
13 Correct 8 ms 39248 KB Output is correct
14 Correct 8 ms 41296 KB Output is correct
15 Correct 8 ms 43344 KB Output is correct
16 Correct 8 ms 39272 KB Output is correct
17 Correct 7 ms 39416 KB Output is correct
18 Correct 8 ms 39248 KB Output is correct
19 Correct 7 ms 41296 KB Output is correct
20 Correct 10 ms 45556 KB Output is correct
21 Correct 8 ms 41388 KB Output is correct
22 Correct 7 ms 41296 KB Output is correct
23 Correct 9 ms 45392 KB Output is correct
24 Correct 8 ms 43364 KB Output is correct
25 Correct 8 ms 43344 KB Output is correct
26 Correct 64 ms 51396 KB Output is correct
27 Correct 109 ms 57928 KB Output is correct
28 Correct 9 ms 41552 KB Output is correct
29 Correct 8 ms 41296 KB Output is correct
30 Correct 8 ms 43344 KB Output is correct
31 Correct 65 ms 51272 KB Output is correct
32 Correct 9 ms 43600 KB Output is correct
33 Correct 105 ms 62792 KB Output is correct
34 Correct 86 ms 57544 KB Output is correct
35 Correct 9 ms 41552 KB Output is correct
36 Correct 65 ms 53700 KB Output is correct
37 Correct 10 ms 41552 KB Output is correct
38 Correct 9 ms 37456 KB Output is correct
39 Correct 67 ms 51548 KB Output is correct
40 Correct 11 ms 43856 KB Output is correct
41 Correct 67 ms 48972 KB Output is correct
42 Correct 89 ms 57160 KB Output is correct
43 Correct 9 ms 43344 KB Output is correct
44 Correct 84 ms 65180 KB Output is correct
45 Correct 106 ms 56652 KB Output is correct
46 Correct 10 ms 39504 KB Output is correct
47 Correct 10 ms 39760 KB Output is correct

Subtask #4
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 53448 KB Output is correct
2 Correct 109 ms 53400 KB Output is correct
3 Correct 11 ms 41808 KB Output is correct
4 Correct 8 ms 39504 KB Output is correct
5 Correct 9 ms 41296 KB Output is correct
6 Correct 9 ms 45392 KB Output is correct
7 Correct 11 ms 43600 KB Output is correct
8 Correct 183 ms 62528 KB Output is correct
9 Correct 9 ms 39504 KB Output is correct
10 Correct 79 ms 51276 KB Output is correct
11 Correct 11 ms 45392 KB Output is correct
12 Correct 61 ms 51276 KB Output is correct
13 Correct 150 ms 60232 KB Output is correct
14 Correct 189 ms 77708 KB Output is correct
15 Correct 63 ms 49984 KB Output is correct
16 Correct 11 ms 45660 KB Output is correct
17 Correct 9 ms 45392 KB Output is correct
18 Correct 117 ms 58792 KB Output is correct
19 Execution timed out 3070 ms 57876 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 45392 KB Output is correct
2 Correct 8 ms 45392 KB Output is correct
3 Correct 8 ms 45404 KB Output is correct
4 Correct 9 ms 45412 KB Output is correct
5 Correct 9 ms 45392 KB Output is correct
6 Correct 8 ms 45392 KB Output is correct
7 Correct 8 ms 45392 KB Output is correct
8 Correct 9 ms 45392 KB Output is correct
9 Correct 8 ms 45392 KB Output is correct
10 Correct 9 ms 45392 KB Output is correct
11 Correct 8 ms 43360 KB Output is correct
12 Correct 9 ms 45392 KB Output is correct
13 Correct 8 ms 39248 KB Output is correct
14 Correct 8 ms 41296 KB Output is correct
15 Correct 8 ms 43344 KB Output is correct
16 Correct 8 ms 39272 KB Output is correct
17 Correct 7 ms 39416 KB Output is correct
18 Correct 8 ms 39248 KB Output is correct
19 Correct 7 ms 41296 KB Output is correct
20 Correct 10 ms 45556 KB Output is correct
21 Correct 8 ms 41388 KB Output is correct
22 Correct 7 ms 41296 KB Output is correct
23 Correct 9 ms 45392 KB Output is correct
24 Correct 8 ms 43364 KB Output is correct
25 Correct 9 ms 45560 KB Output is correct
26 Correct 11 ms 45904 KB Output is correct
27 Correct 9 ms 39504 KB Output is correct
28 Correct 23 ms 45904 KB Output is correct
29 Correct 13 ms 44112 KB Output is correct
30 Correct 11 ms 44112 KB Output is correct
31 Correct 8 ms 39248 KB Output is correct
32 Correct 26 ms 40016 KB Output is correct
33 Correct 8 ms 39416 KB Output is correct
34 Correct 10 ms 41552 KB Output is correct
35 Correct 12 ms 44112 KB Output is correct
36 Correct 9 ms 39672 KB Output is correct
37 Correct 12 ms 41972 KB Output is correct
38 Correct 8 ms 43344 KB Output is correct
39 Correct 12 ms 42064 KB Output is correct
40 Correct 10 ms 43612 KB Output is correct
41 Correct 12 ms 41552 KB Output is correct
42 Correct 10 ms 39676 KB Output is correct
43 Correct 11 ms 44148 KB Output is correct
44 Correct 8 ms 43344 KB Output is correct
45 Correct 15 ms 41808 KB Output is correct
46 Correct 11 ms 43856 KB Output is correct
47 Correct 8 ms 41296 KB Output is correct
48 Correct 10 ms 43600 KB Output is correct
49 Correct 10 ms 43600 KB Output is correct
50 Correct 20 ms 43860 KB Output is correct
51 Correct 10 ms 41552 KB Output is correct
52 Correct 11 ms 41552 KB Output is correct
53 Correct 10 ms 43756 KB Output is correct
54 Correct 11 ms 39760 KB Output is correct
55 Correct 8 ms 43344 KB Output is correct
56 Correct 64 ms 51396 KB Output is correct
57 Correct 109 ms 57928 KB Output is correct
58 Correct 9 ms 41552 KB Output is correct
59 Correct 8 ms 41296 KB Output is correct
60 Correct 8 ms 43344 KB Output is correct
61 Correct 65 ms 51272 KB Output is correct
62 Correct 9 ms 43600 KB Output is correct
63 Correct 105 ms 62792 KB Output is correct
64 Correct 86 ms 57544 KB Output is correct
65 Correct 9 ms 41552 KB Output is correct
66 Correct 65 ms 53700 KB Output is correct
67 Correct 10 ms 41552 KB Output is correct
68 Correct 9 ms 37456 KB Output is correct
69 Correct 67 ms 51548 KB Output is correct
70 Correct 11 ms 43856 KB Output is correct
71 Correct 67 ms 48972 KB Output is correct
72 Correct 89 ms 57160 KB Output is correct
73 Correct 9 ms 43344 KB Output is correct
74 Correct 84 ms 65180 KB Output is correct
75 Correct 106 ms 56652 KB Output is correct
76 Correct 10 ms 39504 KB Output is correct
77 Correct 10 ms 39760 KB Output is correct
78 Correct 69 ms 53448 KB Output is correct
79 Correct 109 ms 53400 KB Output is correct
80 Correct 11 ms 41808 KB Output is correct
81 Correct 8 ms 39504 KB Output is correct
82 Correct 9 ms 41296 KB Output is correct
83 Correct 9 ms 45392 KB Output is correct
84 Correct 11 ms 43600 KB Output is correct
85 Correct 183 ms 62528 KB Output is correct
86 Correct 9 ms 39504 KB Output is correct
87 Correct 79 ms 51276 KB Output is correct
88 Correct 11 ms 45392 KB Output is correct
89 Correct 61 ms 51276 KB Output is correct
90 Correct 150 ms 60232 KB Output is correct
91 Correct 189 ms 77708 KB Output is correct
92 Correct 63 ms 49984 KB Output is correct
93 Correct 11 ms 45660 KB Output is correct
94 Correct 9 ms 45392 KB Output is correct
95 Correct 117 ms 58792 KB Output is correct
96 Execution timed out 3070 ms 57876 KB Time limit exceeded
97 Halted 0 ms 0 KB -